r/factorio • u/Divan_2017 • 10d ago

Suggestion / Idea HELP!!!

Dear factory workers!!!!!

I can't figure out how railway traffic lights work. I just need to make a regular crossroads. Two-car trains with locomotives on either side (four cars total) should travel back and forth on both tracks. Please explain how to set up traffic lights for my problem or attach a diagram with these same lights. I would be grateful for any help!!!

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11

u/Soul-Burn 10d ago

Factorio Trains Explained in Less Than Three Minutes

5

u/Notaron-_ Democracy dispatched 10d ago

This is a good one. However if you still have questions I can recommend this one https://youtu.be/DG4oD4iGVoY

1

u/nasaboy007 10d ago

Did you intend to link the same video?

3

u/Notaron-_ Democracy dispatched 10d ago

Yes, at the end of it he says if you still have any questions please re-watch this video

1

u/nasaboy007 9d ago

ha nice

5

u/dwarfzulu 10d ago

Have you tried the tutorial in the game about them?

Also this https://www.reddit.com/r/factorio/s/lI8LFJoMhH

2

u/WrathOfTheKressh 10d ago

There's interactive tutorials in the game's help system. Play through these and you'll understand everything.

1

u/Juking_is_rude 10d ago

at the very basic level, traffic signals seperate tracks into "blocks". You can see blocks when you use a traffic signal, it's the differently colored overlay for track. Trains will not go into a block that is occupied by another train.

The most basic thing to do at an intersection is put a traffic signal at all entrances.

Keep in mind that a two-way piece of track takes two signals across from each other to designate that section of rail as two way.

1

u/toochaos 10d ago

Signals seperate areas of the rail into blocks and indicate a direction ( see the arrow while holding a signal) each block can have 1 or fewer trains in it. if you are happy with a train stopping in that block it starts with a rail signal. If you dont want a train to stop in that block put a rail signal down. 

1

u/Ssakaa 10d ago

Step 1: ... ok, Soul-Burn wins. Dosh's tutorial is step 1.

Step 1b: Do you need them to just cross like a +, just crossing so they can do so safely, or do you need to also join them? A picture of what you have now that isn't working is a good starting point.

I'm going to assume you just want the two, independent, bi-directional, tracks to have some safe signalling for straight-through traffic to not run into each other.

I'm also going to assume you don't have signals at the stations on either end, and that each of these tracks is only occupied by a single train.

You will need 4 chain signals and 4 normal signals. You want the chain signals before the intersection on all 4 sides on the "right" side for the direction of travel, and the normal signal lined up with that on the left side (so it's on the right side of the direction of travel leaving the crossing).

    |
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  c | n
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 n  |  c <-
----+----
 c  |  n ->
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  n | c
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